'use strict'
const path = require('path')
const webpack = require('webpack')

function resolve(dir) {
  return path.join(__dirname, dir)
}

const name = '博客' // 标题

const port = process.env.port || process.env.npm_config_port || 8080 // 端口

// vue.config.js 配置说明
// 官方vue.config.js 参考文档 https://cli.vuejs.org/zh/config/#css-loaderoptions
// 这里只列一部分，具体配置参考文档
module.exports = {
  // 部署生产环境和开发环境下的URL。
  // 默认情况下，Vue CLI 会假设你的应用是被部署在一个域名的根路径上
  publicPath: process.env.NODE_ENV === 'production' ? '/' : '/',
  // 在npm run build 或 yarn build 时 ，生成文件的目录名称（要和baseUrl的生产环境路径一致）（默认dist）
  outputDir: 'dist',
  // 用于放置生成的静态资源 (js、css、img、fonts) 的；（项目打包之后，静态资源会放在这个文件夹下）
  assetsDir: 'static',
  // 是否开启eslint保存检测，有效值：ture | false | 'error'
  // lintOnSave: process.env.NODE_ENV === 'development',
  lintOnSave: false,
  // 如果你不需要生产环境的 source map，可以将其设置为 false 以加速生产环境构建。
  productionSourceMap: false,
  // webpack-dev-server 相关配置
  devServer: {
    host: '0.0.0.0',
    port: port,
    proxy: {
      // detail: https://cli.vuejs.org/config/#devserver-proxy
      '/api': {
        target: 'http://totrip.xin:8084/api',
        // target: 'http://localhost:80/api',
        changeOrigin: true,
        pathRewrite: {
          '^/api': ''
        }
      }
    },
    disableHostCheck: true
  },
  configureWebpack: {
    name: name,
    resolve: {
      alias: {
        'vue$': 'vue/dist/vue.esm.js',
        '@': resolve('src')
      }
    }
  },
  chainWebpack(config) {
    config.plugins.delete('preload')
    config.plugins.delete('prefetch')
    config
      .plugin('webpack-bundle-analyzer')
      .use(require('webpack-bundle-analyzer').BundleAnalyzerPlugin)

    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/assets/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/assets/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    // set preserveWhitespace
    config.module
      .rule('vue')
      .use('vue-loader')
      .loader('vue-loader')
      .tap(options => {
        options.compilerOptions.preserveWhitespace = true
        return options
      })
      .end()

    config
    // https://webpack.js.org/configuration/devtool/#development
      .when(process.env.NODE_ENV === 'development', config => {
        config
          .devtool('cheap-source-map')
      })

    /* config
      .when(process.env.NODE_ENV !== "development",
        config => {
          config
            .plugin("ScriptExtHtmlWebpackPlugin")
            .after("html")
            .use("script-ext-html-webpack-plugin", [{
              // `runtime` must same as runtimeChunk name. default is `runtime`
              inline: /runtime\..*\.js$/
            }])
            .end();
          config
            .optimization.splitChunks({
            chunks: "all",
            cacheGroups: {
              libs: {
                name: "chunk-libs",
                test: /[\\/]node_modules[\\/]/,
                priority: 10,
                chunks: "initial" // only package third parties that are initially dependent
              },
              elementUI: {
                name: "chunk-elementUI", // split elementUI into a single package
                priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
                test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
              },
              commons: {
                name: "chunk-commons",
                test: resolve("src/components"), // can customize your rules
                minChunks: 3, //  minimum common number
                priority: 5,
                reuseExistingChunk: true
              }
            }
          });
          config.optimization.runtimeChunk("single");
        }
      );*/
  }
}
